During his keynote address at MWC today, WhatsApp’s CEO Jan Koum revealed a new direction the company planned on taking by introducing voice calls on the service in Q2, 2014. Koum also revealed that WhatsApp had crossed 465 million monthly active users globally. This is a 15 million rise in just about four days when it was acquired by Facebook.

Koum didn’t go into the details of how they would be implementing voice calls or which platforms would be getting this feature first. Voice calls on messaging platforms is not a new idea though as other services like BlackBerry’s BBM, Line and KakaoTalk among others have been offering it for quite some time now.

In terms of numbers, of the 465 million monthly active users 330 million are daily active users. According to a report onMedianama earlier today, WhatsApp claims to have more than 40 million active users in India alone.